Search results - 153 results

Demystifying EQA statistics and reports.

To calculate these scores, EQA providers need to have an assigned value and standard deviation for the sample. Both assigned values and standard deviations can be derived chemically or statistically ...

Towards the development of innovative multi-mycotoxin reference materials as promising metrological tool for emerging and regulated mycotoxin analyses.

matter) and significant changes in ergosterol contents (≥±10 %) did not occur. Using the mycotoxin contents in wheat flour stored at-80 °C as reference values, statistically significant decreases were ...

The added value of food frequency questionnaire (FFQ) information to estimate the usual food intake based on repeated 24-hour recalls

recall episodically consumed foods FFQ food consumption survey food frequnecy questionnaire never-consumers Spade statistical modeling methods usual intake Abstract: Background Statistical methods to model ...

Validity and Reproducibility of a Food Frequency Questionnaire for Dietary Factors Related to Colorectal Cancer

data for the FFQ, of whom 156 also participated in the validity assessment. Mean differences in the intake of foods and nutrients between FFQ1 and FFQ2 were, overall, small and statistically ...

ANOVA model for network meta-analysis of diagnostic test accuracy data.

framework and uses the data more efficiently. Nonetheless, handling the inherent correlation between sensitivity and specificity continues to be a statistical challenge. We developed an arm-based hierarchical ...

Ecotoxicological potential of antibiotic pollution-industrial wastewater: bioavailability, biomarkers, and occurrence in Mytilus galloprovincialis.

cells. Results show that PW exhibited a statistically significant (p < 0.001) genotoxic effect in a dose-dependent manner. However, the toxic effects of PW decreased significantly after its treatment ...

Adverse obstetric outcomes after local treatment for cervical preinvasive and early invasive disease according to cone depth: systematic review and meta-analysis.

model and inverse variance. Heterogeneity between studies was assessed with I(2) statistics. MAIN OUTCOME MEASURES:  Obstetric outcomes comprised preterm birth (including spontaneous and threatened), ...

A Versatile Panel of Reference Gene Assays for the Measurement of Chicken mRNA by Quantitative PCR.

selected genes on the detection of statistically significant differences in expression. The results are compared with those obtained using 28s ribosomal RNA, the present most widely accepted reference gene ...

Socioeconomic Inequalities in Smoking and Smoking Cessation Due to a Smoking Ban: General Population-Based Cross-Sectional Study in Luxembourg.

Socio-Economique Liewen Zu Letzebuerg/European Union–Statistic on Income and Living Conditions) survey, which was a representative survey of the general population aged ≥16 years conducted in Luxembourg in 2005, ...

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